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Title: Light-quarks Yukawa couplings and new physics in exclusive high- p T Higgs boson + jet and Higgs boson + b -jet events

We suggest that the exclusive $$\mathrm{Higgs}+\text{light}$$ (or b)-jet production at the LHC, $$pp{\rightarrow}h+j({j}_{b})$$, is a rather sensitive probe of the light-quarks Yukawa couplings and of other forms of new physics (NP) in the Higgs-gluon $hgg$ and quark-gluon $qqg$ interactions. We study the Higgs $${p}_{T}$$-distribution in $$pp{\rightarrow}h+j({j}_{b}){\rightarrow}{\gamma}{\gamma}+j({j}_{b})$$, i.e., in $$h+j({j}_{b})$$ production followed by the Higgs decay $$h{\rightarrow}{\gamma}{\gamma}$$, employing the ($${p}_{T}$$-dependent) signal strength formalism to probe various types of NP which are relevant to these processes and which we parametrize either as scaled Standard Model (SM) couplings (the kappa-framework) and/or through new higher dimensional effective operators (the SMEFT framework). We find that the exclusive $$h+j({j}_{b})$$ production at the 13 TeV LHC is sensitive to various NP scenarios, with typical scales ranging from a few TeV to $$\mathcal{O}(10)\text{ }\text{ }\mathrm{TeV}$$, depending on the flavor, chirality and Lorentz structure of the underlying physics.
Authors:
 [1] ;  [1] ;  [1] ;  [2]
  1. Technion – Israel Inst. of Technology, Haifa (Israel). Physics Dept.
  2. Brookhaven National Lab. (BNL), Upton, NY (United States). Physics Dept.
Publication Date:
Report Number(s):
BNL-205693-2018-JAAM
Journal ID: ISSN 2470-0010
Grant/Contract Number:
SC0012704
Type:
Published Article
Journal Name:
Physical Review D
Additional Journal Information:
Journal Volume: 97; Journal Issue: 5; Journal ID: ISSN 2470-0010
Publisher:
American Physical Society (APS)
Research Org:
Brookhaven National Lab. (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), High Energy Physics (HEP) (SC-25)
Country of Publication:
United States
Language:
English
Subject:
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; effective field theory; particle interactions; Higgs bosons
OSTI Identifier:
1425986
Alternate Identifier(s):
OSTI ID: 1438180